Sprinkler head



Dec. 7, 193,7. E TYDEN 2,10L694 SPR INKLER HEAD Filed Oct. l0, 1936 Patented Dec. 7, 1937 i 'j UNITED STATES PATENT oFricE sPItINKLER HEAD i Emil Tyden, Hastings, Mich. Application october 10, 1936, seranv N6.' 105,000 claims. (ci. 29e-121) This invention relates to improvements in automaticsprinklers-and is particularly concerned with certain features of a sprinkler head adapted to be mounted relatively near a vertical Wall. 'I'he invention includes means to ensure a proper distribution of the reextinguishing medium so that the sprinklerrhead shall project the material to a considerable distance away fromthe wall, andat `the same time discharge asucient, but notan excessive, quantity of the 'material against the wall itself. i Theinvention thus-consists of certain features and elements of construction in combinationas herein shown and describedV and as indicatedby the claims. i

In the drawing:

Y Figure 1 is a top plan view of a sprinkler head embodying .this invention together with Ya diagrammatic representation of a vertical wall near which the sprinkler head is mounted.

Figure 2 is a side3'elevation of a sprinkler head indicating the contour of the deectorassociated therewith and having certain parts broken away to show themethod of securing the deector in position. f `Figure 3 is an elevation taken at rightfangles to that of Figure 2 and showing the discharge slot in the deiiector.

c Figure 4 is a detail section as indicatedat line 4-4 on Figure 2. i

In variousfsituations it is. necessary .or desirable, to install sprinkler heads adjacent the vertical walls of a. room or enclosure instead of Vin the more usual arrangement, directly below the ceiling. One example .or such .installation is the stateroom or cabin of asteamship, and in such an enclosure, .when the sprinkler head is mounted relativelyclose to one of the vertical Walls, it is necessary to provide a special form of deflectorV for. distributing the water or other re extinguish-` ing medium laterally over a suflicient portion of the room. Such a deector must also avoidwasting too much of the water against the relatively close wall surface whileprcviding for the discharge of a sufficient quantity inY that direction. In Figurel the sprinkler head is indicated as supported on a short horizontal section of pipe, I, projecting from the sidewall, 2, and, as shown, it is located adjacent Vthe corner formed by the intersection of the wall, 2,`and the wall, 3, of the apartment. In this particular installation the sprinkler head is arranged to discharge water against both the walls, 2 and' 3, within a reasonabledistance of the corner, and to discharge water in the opposite direction over the room area.v

a large portion of The sprinkler head consists of a threaded base, 4, which is bored to provide a nozzle terminating upwardly at 5, and normally closed by means of a sealing disk, '5, and cap or valve member, l. In the form shown the head includes an integral frame composed of two arms, 8 and 9, extending laterally vfrom the base and curving upwardly to form a closed yoke overlying the nozzle. Directly opposite the nozzle the yoke is threaded for a set Screw,.- I, and the cap valve, is held closed by a toggle acting as `a strut between thevalve and the end of the screw, It, in a` wellY understood manner. The toggle'members, II and I2, are formed with laterally extending arms, I3 and I4,

' respectively, having hook-shaped terminals which are connected byfa` fusible link,"I5, so that in theevent of fire v,occurring inthe apartment the rise of temperature in the vicinity of the sprinkler head will melt the link, I5, thus allowing the tog'- gle, I I--I 2, to buckle under the pressure of water in the nozzle,5, and causing the cap valve, l, and sealing disk, 6, to be forced open for free discharge of water from the nozzle, 5.

c Such discharge will take place along the axis of thefnozzle, 5, with some spreading of the stream asit approaches the middle of the yoke formed by the junction of arms,.8 and 9.` To control the distribution of the lire extinguishing medium a deflector plate, I6, is mounted on the yoke or frame and is formed with a substantially at portion, I1which is disposed oppositethe Vnozzle mouth, 5, and overlies one arm, 9, of the yoke so as to extend at an obtuse angle to the axis of the nozzle and tothe direction of flow therefrom.A Thus the re extinguishing medium, such as water, which strikes this hat portion, I'I, of

the deector, instead Yof being forced back, is shunted laterallyfor wide distribution over Vthe area at one ,sideof the sprinkler head.

The central portion of the deflector, I6, is apertured to t `onto a reduced neck,` I8, of a central boss, I9, through which the set screw, ID, ex-

tends, and this reduced neck, I8, is then peened deflector is formed with a slot or opening, 2I,

directly over the adjacent portion of the arm, 8, so that the arm is interposed between this opening and the nozzle, 5. However, the arm,

8, at this point is of tapered cross-section, as indicated in Figure 4, so that its surfaces meet in an edge, 22, facing the nozzle opening and diverge therefrom, thus acting to split the flow from the nozzle as it approaches the curved deflector surface, 2B. The portion of the deflector immediately adjacent the slot, 2l, is formed into a hood at 23, which arches over the arm, 8, but out of contact therewith. Thus the stream of nre extinguishing medium which is split by contact with the arm, il, is gathered by the hood, 23, for iinal discharge through the opening, 2l, and the two streams coming from opposite sides of the arm, 8, thus meet in or near the opening, 2|, and cross or `merge to form a fan-like spray, serving to cover a considerable area. This spray, directed into the corner of the apartment between the walls, 2 and 3, is adequate for these surfaces adjacent the sprinkler head itself, al-l though it demands only a small proportion of the total iiow discharged from the nozzle, 5, and the remainder of the medium is distributed in the opposite direction,-that is, laterally into the apartment,-by virtue of the deflecting action of the flat portion of the plate'at l1. The arm, 9, is similar in cross-section to the arm, 8, tapering divergently from an edge which faces toward the nozzle opening at 5; thus it serves to split and spread the flow of fire Yextinguishing medium discharged by the nozzle against the deflecting surface, l1, and aids in producing a wide distribution of the medium.

Since, in many instances, as for example, in a Steamship cabin or stateroom, a sprinkler head of this type will be installed at a height within easy reach instead of just below the ceiling, it is desirable to lock the set screw, l0, at adjusted position to prevent tampering with the scr'ewby unauthorized persons. For this purpose the screw and the portion of the head containing it may be drilled transversely and a locking pin ,inserted, as indicated at 24 in Figure 2. If the nozzle should be brought into action by the occurrence of a re, it may be understood that after extinguishment of the fire the water supply through the pipe, l, will be shut off temporarily and the entire sprinkler head will be removed and replaced instead of attempting toreadjust the set screw for resetting the valve with a new fusible link, I5. V

While there is shown and described herein certain specific structure embodying theV invention, it will be manifest to those skilled in the art that various modications and rie-arrangements of the parts may be made without departing from the spirit and the scope of the invention, and that the same is not limited to the particular form herein shown and described, ,except in so far as indicated by the appended claims.

I claim:

l. A sprinkler having ya base with a nozzle therethrough for discharge of a re extinguishing medium, arms extending from said base to form a yoke overlying the nozzle, and a deflector mounted on said yoke and having a substantially nat portion overlying onewoi said arms at an obtuse angle to the axis of the `nozzle as measured in the plane of the yoke, said arm being formed and positioned to split and deflect said now as it approaches said flat portion, and the latter being arranged to further deect and spread the discharge of the medium.

2. A sprinkler having a basevwith a nozzle therethrough for discharge o a fire extinguishing medium, arms extending from said base and forming a yoke overlying the nozzle, and a deflector mounted on said yoke and having a substantially flat portion overlying one of said arms at an obtuse angle to the direction of flow from the nozzle and a portion extending over the other arm at an acute angle to said direction of ow and trending toward the base, said lastnamed portion including a hood arching over said other arm out of contact therewith, and said hood having an opening for discharge of the medium, both arms being formed and positioned to split the ow from the nozzle divergently as it approaches the deflector.

3. In the combination dened in claim 2, the opening in the hood being located directly over the arm.

fi. A sprinkler having a base with a nozzle therethrough for discharge of a re extinguishing medium, arms extending from said base to form a yoke overlying the nozzle, and a deflector mounted on said yoke and having a substantially flat portion overlying one of said arms at an ob'- tuse angle to the direction of flow from the nozzle and a portion extending over the other arm at an acute angle to said direction of flow and trending toward the base, said last-named por'- tion having a slot extending Aover and along the arm for discharge of a portion of the medium through the def-lector, and both arms being constructed and arranged to split divergently the flow from the nozzle before it reaches the deflector.

5. A sprinkler having a base with a nozzle therethrough for discharge of a nre extinguishing medium, arms extending from said baset form a yoke overlying the nozzle, and a deflector mounted on said yoke and having a substantially flat portion overlying one of said arms at an obtuse angle to the direction of flow from the nozzle and a portion extending over the other arm at an acute angle to said direction offlow and trending toward the base, said last-named portion including a hood arching over said other arm out of contact therewith and formed with 'a slot directly over the arm and extending along it, said other arm being constructed and arranged to split the flow from the nozzle and the hood'being formed and positioned for gathering said flow to produce a spreading discharge through the slot.

6. A sprinkler having a base with a nozzle therethrough for discharge of a fire extinguish-l ing medium, and a deflector xedly mounted over said nozzle having a substantially at portion extending obliquely with respect to the direction of ilow from the nozzle, said deflector terminat- 'v ing in a portion curving toward the base, said curved portion having a single opening and the structure `including an arm disposed between the nozzle and the opening in the deflector constructed and arranged for splitting the flow discharged from the nozzle toward the opening.

7. A sprinkler having a base with a nozzle therethrough for discharge of a fire extinguishing medium, and a deflector xedly mounted over said nozzle having a substantially 'at portion extending obliquely with respect to the direction of now from the nozzle, said deflector terminating in a portion curving toward the base, said curved portion having a single opening and the structure including an arm disposed between the nozzle and the opening in the deflector constructed and arranged for splitting the ow discharged from the nozzle toward the opening, the surface of the .deilector adjacent said arm converging from opposite sides of the arm toward the opening and being spaced from the arm to form ilow passages around it. l

8. AV sprinkler having a base with a nozzle therethrough for discharge of a i'lre extinguishing medium, and a deector xedly mounted over said nozzle having a substantially at portion extending obliquely with respect to the direction of ow from the nozzle, said defiector terminating ina portionV curving toward the base, said curved portion having a single opening and the structure including an arm disposed between the nozzle and the opening in the deflector for splitting the flow discharged from the nozzle toward the opening, the cross-section of the arm adjacent said opening being tapered divergently from i the side toward the nozzle for splitting the flow therefrom.

9. A sprinkler having a base with a nozzle therethrough for discharge of a fire extinguishing medium, and a deector xedly mounted over said nozzle having a. substantiallyrat portion extendingobliquely with respect to the direction of iiow from the nozzle, said deiiector terminating in a portion curving toward the base, said curvedA portion having a single opening and the structure including an arm disposed between the nozzle and an opening'in the deflector for splitting the iloW discharged from. the nozzle toward'v 10. Asprinkler having a base with a nozzle therethrough for discharge of a fire extinguishing medium, and a deflector xedly mounted over said nozzle having a substantially ilat portion extending obliquely with respect to the axis of the nozzle, the structure including an arm interposed in the path of flow from the nozzle to the deflector and havin-g a surface presented obliquely to the direction of said flow for deflecting the discharge of the medium as it approaches the deflector.

EMIL TYDEN. 

